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You want some back pressure. To much back pressure is a bd thing, it will choke the engine as well as make it run hotter and the oil will get dirty faster. To litte back presure and ure low end power will be poor. If your going for top end and ure going to drive 60mph and race all over then it may be worth sacrficing the low end to have good top end power and excellertaion. If its for arounf town drving not racing u will want some back presure so u dont have poor low end power and bad gas mileage. If you want the best of both worlds u can get a more free flowing exhaust, but dont go 2 large on the pipes keep it balanced. It all depnds what you want and what your willing to sacrifice.

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16y ago

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